EE 322

Lab 7: Using MATLAB to Investigate Filter Transfer Functions

In this lab we will use MATLAB to demonstrate/simulate the frequency response of different kinds of low pass filters, and to obtain the step response of the filters in the time domain.

  1. Begin by generating a .m file that produces a pole-zero plot of the transfer function for the following types of filters: Butterworth, Chebyshev Type 1, Elliptic, and Bessel.
  2. Expand your program to plot the frequency response H(j w) for the four different types of filters.
  3. One can tell the difference between filters from their impulse and step responses.

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